Sounds like a variation to the Reach-in Reporting AntiPattern - the proposed solution is the Asynchronous Event Pushing. There is a wide variety of technologies that can by used for that.

Something ready?

You give no description of the details in the problem space so it would be difficult to make any specific recommendations. Conceptually any publish-subscribe scheme would enable provider services to notify consumer services that a relevant change has occurred - so that the consumers wouldn’t have to poll the providers. But depending on the circumstances you may wish to publish the updated data with the event, instead of simply indicating that the data has changed.